Spinning and twisting machine



Sept 25 1956 w. BURKHARDT 2763,90

SPINNING AND TWISTING MACHINE Filed June 2, 1952 7 Sheets-Sheet l Fig. l

l lll/145 Sept- 25, 1956 w. BURKHARDT 2,763,980

SPINNING AND TwIsTING MACHINE Filed June 2, 1952 7 Sheets-Sheet 2 Fig. 3

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Mm., 25, 1956 w. BURKHARDT 2,763,930

SPINNING AND TWISTING MACHINE Filed June 2, 1952 7 Sheets-Sheet 4 Fig. 5

Sept. 25, 1956 w. BURKHARDT SPINNING AND TWISTING MACHINE 7 Sheets-Shen 5 Filed June 2, 1952 Sept. 25, 1956 w. BURKHARDT SPINNING AND TwIsTING MACHINE 7 Sheets-Sheet 6 Filed June 2, 1952 Sept.. 25 1956 W. BURKHARDT SPINNING AND TWISTING MACHINE 7 Sheets-Sheet. 7

Filed June 2, 1952 Fig. @a

The invention relates to spinning and twisting machines. It is an object of the invention to provide a machine in which the spindles are easily accessible and all the spindles equally turn and wind the yarns. The invention has a further object to provide for the drive of the spindles in such a manner that they are able to be turned in clockwise and counterclockwise rotation. Thus no reversing gears are necessary.

The invention is fully explained in the following description and illustrated by way of example in the accompanying drawings in which,

Figure 1 is a diagrammatic View with parts in section showing the spindle arrangement in side elevation,

Fig. 2 is a top plan view of the front and rear spindle carrier brackets,

Fig. 3 is a side elevation of a spindle mount partly in section and on an enlarged scale,

Fig. 4 is a plan view of the spindle drive,

Fig. 5 is a longitudinal section of one of mountings,

Figs. 6 and 7 are cross sections of a one-way friction coupling taken on lines 6--6 and 7-7 respectively of Fig. 5,

Fig. 8 is a diagrammatic view in side elevation and partly in section,

Fig. 8a is a diagrammatic side elevation of a balance beam and associated parts,

Fig. 9 is a diagrammatic View in front elevation,

Fig. l0 is a side View of a detail, and

Fig. 10a is a side view of the detail of Fig. l0 showing another movement of the parts,

Figs. l and 2 show diagrammatically the principle of the spindle arrangement in which one of the two spindle rowsis located at a higher level than the other row on the same side of the machine. Atthe same time the spindles are laterally displaceable relative to each other.

The rear spindle rail 1 is placed higher than the front spindle rail 2, and the spindles 3 are displaced laterally relative to the spindles 4.

The spindle rails ll and 2 move up and down with ring rails 5 and d which latter receive the thread from a common stretching device 7 and 8. Thread guides 9 with thread guide Vrods l@ guide the thread to rings 11 of the rear spindle row 3, while the thread of the front spindle row 4 is directed through two thread guides 12 and 14 arranged on take-up rods. Thereby the structure is such, that the distance from the thread guide 9 to the ring lll and from the thread guide 14 to the ring 15 is equal, so that fully equal conditions for the threads of the front spindle row 4 as well as of the rear spindle row 3 are obtained with respect to twisting, winding up and downward travel.

The band guide of the drive can be made from the tambour 16, as illustrated by way of example in Fig. l, and around rollers 17 of the upper spindle row 3 and rollers 18 of the lower spindle row 4. Tension rollers 19 and 20 are positioned in each band strand, whereby the latter are located below the former.

the spindle States jlatent i@ According to Figs. 3 and 4 showing a spindle row in side elevation and partly in plan, a friction wheel drive is provided which is particularly advantageous for a single drive of the spindle, so that two adjacent spindles on every spindle row each having a friction roller, are driven in the same direction by a common horizontal roller which is rotated by a vertical friction disc.

Each spindle 3, as illustrated in the drawing, is provided with a friction roller 21. A driving friction disc 22 co-acts with the friction rollers 21 of two adjacent spindles arranged adjacent to each other and is rotated by a friction disc 23 mounted vertically. All driving discs 23 in a spindle row are mounted on a common shaft 24.

There is also a driving device which is characterised by its simplicity in construction and its reliability of operation. Thereby it will be preferred to adjustably secure a bearing 25 for each horizontal friction disc 22 on the spindle rail 1 by means of a suitable supporting arm 26.

In the textile mills there are frequently worked up yarns with a right hand as well as a left hand twist. Therefore it is desirable that the spindles are able to be used for right hand and left hand operation without any difficulty.

For this reason the invention is further designed in such a manner, as is diagrammatically illustrated in Figs. 5 to 7.

According to the invention a double-freewheel device is interposed in the transmission of the driving member, for instance, a friction collar 21. For this purpose a sleeve-shaped housing 27 is coupled with the friction collar 21', for instance, screwed on, which carries two freewheel devices one above the other. The upper freewheel device consists of roller membrs, for instanc, rollers 2S, inherent slide bars 29 and springs 30. The lower freewheel device consists of rolling members, for instance, rollers 31, slide bars 32 and springs 33.

A brake ring 34 is rigidly connected with the spindle 3. The thrust part of a toggle brake, of known construction, is indicated by 35. In lifting the brake pressure is taken up by a brake ring 34, the spindle 3 being consequently retained, whereby the rollers 28 of the upper freewheel device are released and can rotate freely on their own axles. Upon releasing the brake therollers 28 are forced into the wedge-shaped slot 36 under the action of the spring 30, whereby a rigid connection is caused between the freewheel housing 27 and the driving member 21' on the one hand and the spindle 3 on the other hand. By reversing the rotating direction this operation takes place with the lower freewheel device. By rotating in clockwise direction of the spindle, the drive is obtained through the upper freewheel device, and by rotating in counterclockwise direction, the drive is through the lower freewheel device without any reversing operation. It is advisable to carry the driving disc 21 by means of an anti-friction bearing interposed between it and a spindle bushing 37, for instance, a needle bearing 33. Also an axial thrust bearing 39 can be used.

In Figs. 8, 9 and l() an arrangement of a machine is shown in which the spindle row 3 is mounted on the spindle frame and placed at a higher level than the spindle row 4 on the spindle rail 2, whereby as mentioned, the spindles 3 are displaced laterally relative to the spindles 4. The spindle rails 1 and 2 oscillate up and downward in opposite directions which is necessary for winding up the yarn. The drive for this operation is provided by means of a beam of a balance 40 which is able to oscillate to and fro about a supporting bolt 41, actuated by cams 42 and 43 which are controlled positively and displaced one relative to another in cooperation with rollers 44 and 45. The cams 42 and 43 are driven from alfront cylinder s'haftf57 of the stretching device by means of a worm gear 46, worm wheels 47 and 4S, shafts 49 and 50, as well as pairs of bevel gears 51 and 52 and 53 and 54, and shafts 55 and 56.

Worm wheels 58' and `59vare carried on either end Vof the beam balance y4t). Discs 60' and 61-are rigidly connected witlrsaid yworm wheels and engage with drive means 62 and. 63 which are -in the form of chain strands. These chains transmit the oppositely directed movements of both the levers ofthe beam balance to the spindlerails 1 and 2 by meansl of lower sprockets 64 and 65 of lifting levers 166 and 67 and shafts 68 and 69 (see particularly Fig. 8). i- Besides the movementin opposite directions the uniform loweringlof the spindle Arails land 2 will be attained withV the complete winding up of-the cops in such a manner thatthe Worm `wheels 58 and59 mesh with worm gears 70.and 71 respectively which are mounted on worm shaftr72 carried by the beam of the balance 40. A forked lever 73 is provided loosely rotating on the end of the worm shaft 72 and carries on one of its ends a pawl 74 which engages a ratchet wheel 75 mounted rigidly on the end of the worm shaft 72.

When the beam of the balance 40 is moved downwards the second end of theforked lever 73 pushes on the head of an adjusting screw bolt 76 whereby the ratchet wheel 75 is moved towards the direction of -the arrow 77 with the effect that the worm wheels 58 and 59 are rotatedand the chain strands 62, 63 roll olf from their sprockets 60, 61 as long as the beam of the balance 40 has reached the lowest position.

v When the beam` of the vbalance 40 is moved Yupwards the forked lever 73 `remains in position as long as it is retained by the stop 78, while in the meantime the pawl has returned a few teeth.

According to the yarn thickness to be Workedthe screw bolt 76 will be adjusted higher or lower. As the beam of the balance 40 carries out a constant oscillating movement the lowering of thescrew bolt 76 must be regulated.

When the cops have'been wound up the lifting levers 80 and 81 are in the lowest position and it is possible to raise them by turning the ratchet wheel 75 in the direction of the arrow 79 either byhand or by motor.

The ring rails 84 and 85 are rigidly mounted as are also the thread guides 86 and 87, the distance of which can be adapted to the length of the sleeves and bobbins. Thefront thread guide is `designed as a double thread guide, as already vexplained with reference Vto Fig. 1, while the rear thread guide' is in the form of a single thread guide.

The spindle rails 1 and 2 slide duringtheir movement up and down along rigid columns 88 and 89 which are connected with the head parts vof the machine by means of continuous traverses 90 and 91.

The spindles 3 and 4 will be fixed and stopped, as alreadymentioned, in known manner by toggle brakes 35, whereby the brake lever 35 transmits its movement to the brake ring 34 by means of a Bowden cable A92 when the rail 1 is arranged in an elevated level.

What I claim and desire to secure by Letters Patent is:

1. A-ring spinning and twisting machine comprising friction disk arrangeduon spindles arranged in two rows and laterally displaced relatively to each other, whereby the one spindle row is situated at a higher level than the other in step-wise fashion, a common stretching device adapted to lead the thread for both the spindle rows, a thread guide for the thread for each spindle, and an additional thread guide on a guiding rod for the lower row to obtain equal conditions in height for turning and winding.

2. A: ring spinning and twisting machine comprising spindles arranged in two rows and laterally displaced relatively te each other, whereby the one spindle row is situated at a higher level than .the other in step-wise fashion, a common stretching device adapted to lead the thread for both the spindle rows, athread guide for the thread of each spindle, an additional thread guide on a guiding rod for the lower row to obtain equal conditions in height for turning and winding, drivingV means provided to rotate two adjacent spindles, comprising a each of said spindles, and a common horizontal friction disk to drive said spindles inV the same direction.

y3. A ring spinning and twisting machine comprising spindles arrangedin two rows and laterallydisplaced relatively to each other, whereby the one spindle row is situated` ata higher level than the other in step-wise fashion, a common stretching device adapted to lead the thread for both the lspindle rows, a thread guide for thewthread of each spindle,Y an-additional thread guide on a guiding rod for the lower. row to obtain equal conditions'. innheight for turning and winding, anda double freewheel'to.. transmit the iturning movement of thewdriving member to each spindle including a casing coupled with said driving member and two freewheel l clampingmembersin said casing and Veffective nin two different turning directions.

4. A ring spinning and twisting machine comprising spindlerails arranged in two rows and laterally displaced relatively to each other, whereby the one spindle row is situated ata Vhigher level than the other in step-wise fashion, a commonstretching device adapted to lead the thread for both the spindle rows, a thread guide for the thread of `each spindle, an additional thread guide on a guiding rod for the lower row to obtain equal conditions in. height for turning and winding, a doublearmed balance beam adapted to raise and lower both the spindle-rails, cam-disks to control the oscillating movement of said beam, .and drive means to transmitl Ithe oscillating movement to oscillate the said rails.

VRefertnces Cited in the le of this patent fUNrrED 'STATES PATENTS "774,743 Draper Nov. 15, 1904 1,798,905 VVSchneider Mar. 31, 1931 2,119,728 Turcotte .Tuney 7, 1938 FOREIGN PATENTS 12,7042 Great Britain May 25, 1905 20,551 Great Britain Sept. 29, V1898 358,795 France Dec. 29, 1905 417,824 Germany Aug. 18,1925 

